I have a Dell optiplex 760 with onboard graphics, 1 pci-e, 1agp, and 2 pci slots. What's the best way to add tv capability and speed up the video? Am I stuck with an all-in-one or do I go graphics card in pci-e and tuner card in one of the other slots? Or a tuner in pci_e and an agp video card? Any suggestions? Need more knowledge! Appreciate your thoughts on this. Thanks!